Road Salt Creates More Harm To Freshwater Life Than Expected, Study Finds

Freshwater streams, ponds and lakes across the United States are becoming saltier, and new research from the University of Missouri shows the damage may be greater than scientists once thought.

Scientists at Mizzou’s College of Agriculture, Food and Natural Resources found that road salt becomes much more deadly to freshwater snails when combined with the fear of natural predators in the water.

Road salt mainly enters fresh water through road runoff from winter deicing. While...